Which best describes the final phase in our sun's life cycle?
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a. it will collapse and become a brown dwarf.
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b. it will collapse and become a white dwarf.
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c. it will explode and form a black hole.
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d. it will expand and become a red giant.

The correct option is B. It will collapse and become a white dwarf.

Explanation:

Scientists present a theory that the major parts of the Sun's life cycle would be:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.